Dump-car.



T. R. MoKNIGHT. -DUl ltlfGAR. APPLmM-IoN 11mm Mn 7,1909.

Paterited Aug. 31, 1909.-

THOMAS R. MCKNIGHT, OF CHICAGO, ILLINOIS, ASSIGNORE'TO- WESTEBN WHEELED SCRAPEB COMPANY, or AURORA, rumors, A coitroim'rioiv or rumors.

DUIMP-CAR.

Speeification of Letters Patent.

Patented Aug. 31, 1909.

Application filed May 7, 1909. Serial No. 494,548.

To all whom it may concern."

Be it known that I, THOMAS R. Mo-

IiNIGHT, a citizen of the United States, re-

siding at Chicago, in the county of Cook and State of Illinois, have ihvented certain new and useful Improvements in Dump- Cars, of which the following is a specification, reference being had to the accompanying drawings.

My invention relates to dump-cars, and particularly to cars of the type shown and described in Letters Patent of the United States, No. 612,263, granted to me October 11, 1898. In such cars the car-body is car- 'ried on a truck in such manner as to be In dump-cars of this type the brackets to.

which the pins above mentioned are connected serve as rockers which carry the load and bear upon the upper surface of the supports carried, by the truck, the pins above mentioned serving merely to connect said brackets with the supports. The result is that there is considerable wear upon thesupports due to the rocking movement of thebrackets in dumping the load at one side or the other, and as this is not always uniform on the several. supports of a car, the

proper operation of the caris interfered with, and this can be overcome only, by rcnewin the several supports.

The 0 ject of my present invention is to avoid this objection and provide a construction by which the car may bemaintained at its greatest efficiency at slight expense and trouble. I accomplish this object as illustrated in the drawings and as hereinafter-described, what I regard as new is set forth in the claims. I I

In the accompanying drawings,-Figure 1 is an end view of a dump-car of the type referred to; Fig. 2 is an end view of one 1g. 3

of the supporting devices therefor; I:

' is a side elevation thereof; and Fig. 4 is a plates.

perspective As best shown in Fig. 1, 5 indicates the truck and (5 the car-body, Whichis usually provided with swinging side-gates 7-8, as described in my said patent. The side-gates are carried by swinging. arms 910.res ectively, which are pivoted. at the longitudmal center of the car, as shown at 11, and are automatically operated by the tilting of thecar to expose one side or the other thereof by levers 1218 and 14-15, respectively, as described in said patent. The operation of the side-gates has nothing to do with my present invention and therefore will not be described further.

16-17 indicate side-chains for holding the car in its normal position when used for transporting the load. v 18 indicates one of .the car-body supports carried by the truck. Said support is provided with a central vertical socket or passage, which is adapted toireceive a pin or bar 19 which is pivotally connected by a pivot 20 with a bracket 21 secured to the under side of the car at the center thereof. It I will be understood that any desired number of the supports and brackets are employed placed at intervals along the length of the car. The pin 19 fits in the vertical socket or passage in the support 18-, and the lower end of the bracket, which is rounded, as shown in Figsl and 2, serves as a rocker on which the car-body turns in dumping.

In order to take the wear of the bracket 21, I provide between each bracket 21 and support 18 a wearing-plate 22, which is provided with an opening 23 for the passage of the pin 19. Said plate rests upon the top of the support 18 between said support and the bracket 21, so that said bracket rocks upon the plate 22 instead of on the support 18, as in the construction of my said patent. 1 \Vhen the plate 22 is worn to such an extent as to interfere with the proper operation of the car, it may readily be removed and replaced, and if desired al the plates 22 on a car may be removed and replaced at the same time at very slight expense and with view of one of the bearing 55 ticn with a car-body, one or more brackets sex-med to the car-body, one or more pins pivot-ally connected with said brackets and :u I il i)l0tl to enter the sockets in said supports,

0 and. bearing-plates between said'supports pivotnlly connected with said brackets and adapted to enter the sockets 1n sald supports, and bearing-plates between smd supports and brmtkcts, said bcnl'ill -ph1tes being pen fornted for the passage 0 said pins.

THOMAS 1. McKNIGHT.

Witnesses:

M. A. EAGELSTON, M. S. SPERRY. 

